Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MC2104L R found under Microcircuit Digital by Rochester Electronicsllc. The National Stock Number assigned to this part is 5962000937963, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MC2104L R.